28361417 has 4 divisors (see below), whose sum is σ = 32413056. Its totient is φ = 24309780.

The previous prime is 28361387. The next prime is 28361453. The reversal of 28361417 is 71416382.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71416382 = 2 ⋅35708191.

It is a cyclic number.

It is not a de Polignac number, because 28361417 - 2⁶ = 28361353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28361717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2025809 + ... + 2025822.

It is an arithmetic number, because the mean of its divisors is an integer number (8103264).

Almost surely, 2^28361417 is an apocalyptic number.

It is an amenable number.

28361417 is a deficient number, since it is larger than the sum of its proper divisors (4051639).

28361417 is an equidigital number, since it uses as much as digits as its factorization.

28361417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4051638.

The product of its digits is 8064, while the sum is 32.

The square root of 28361417 is about 5325.5438219960. The cubic root of 28361417 is about 304.9598334636.

Adding to 28361417 its reverse (71416382), we get a palindrome (99777799).

The spelling of 28361417 in words is "twenty-eight million, three hundred sixty-one thousand, four hundred seventeen".